I ordered that kit from Fel Pro, the PN hasn't changed but those blue side seals are a new addition. Just 2 years ago they came with a tube of RTV and pipe cleaners. They do have a little stiffness so may be able to slide them in like the old fibers with either RTV on them to lubricate or just plain oil. I'll see how they work for me.

Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street